LG LD1455WLFCS2 Service Manual
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LG LD1455WLFCS2 Service Manual

LG LD1455WLFCS2 Service Manual

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DISHWASHER
SERVICE MANUAL
NOTE
BEFORE SERVICING THE UNIT, PLEASE READ THIS MANUAL CAREFULLY
FOR SAFETY AND CORRECT SERVICES.
MODEL : LD1455W(L,M,T,B,C)FCS2
LD1454W(L,M,T,B,C)FES2
LD1453W(L,M,T,B,C)FEN2
LD1452W(L,M,T,B,C)FEN2
You may also find user manual in video version at following link
www.lg.com/steamdishwasher

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Summary of Contents for LG LD1455WLFCS2

  • Page 1 DISHWASHER SERVICE MANUAL NOTE BEFORE SERVICING THE UNIT, PLEASE READ THIS MANUAL CAREFULLY FOR SAFETY AND CORRECT SERVICES. MODEL : LD1455W(L,M,T,B,C)FCS2 LD1454W(L,M,T,B,C)FES2 LD1453W(L,M,T,B,C)FEN2 LD1452W(L,M,T,B,C)FEN2 You may also find user manual in video version at following link www.lg.com/steamdishwasher...

  • Page 3: Table Of Contents

    CONTENTS 1. CAUTION 2. SPECIFICATIONS 3. PARTS NAME 4. FEATURES & TECHNICAL EXPLANATION 5. WIRING DIAGRAM 6. PROGRAM CHART (SCHEMATIC DIAGRAM) 7. HOW TO DISASSEMBLE 8. TROUBLE SHOOTING METHODS 9. INSTALLATION INSTRUCTION 10. EXPLODED VIEW...

  • Page 4: Caution

    CAUTION ! DISCONNECT POWER CORD BEFORE SERVICING RECONNECT ALL GROUNDING DEVICES IMPORTANT SAFETY NOTICE ! This service information is intended for individuals possessing adequate backgrounds of electrical, electronic and mechanical experience. Any attempt to repair this appliance may result in personal injury and property damage.

  • Page 5: Specifications

    2. SPECIFICATION I I T T E E M M S S P P E E C C I I F F I I C C A A T T I I O O N N R R a a t t e e d d V V o o l l t t a a g g e e / / F F r r e e q q u u e e n n c c y y A A C C 2 2 2 2 0 0 ~ ~ 2 2 4 4 0 0 V V / / 5 5 0 0 H H z z I I n n s s t t a a l l l l a a t t i i o o n n F F r r e e e e s s t t a a n n d d i i n n g g...

  • Page 6: Parts Name

    3. PARTS NAME LD1455 / LD1454 / LD1453 1. Control Panel 11. Upper Rack 2. Door Handle 12. Cutlery Basket 3. Front Cover 13.Detergent And Rinse Aid Dispenser 4. Lower Cover 14.Vapor Vent Cover 5. Display Window 15.Upper Spray Arm 6.
  • Page 7 LD1452 1. Control Panel 11. Upper Rack 2. Door Handle 12. Cutlery Basket 3. Front Cover 13. Detergent And Rinse Aid Dispenser 4. Lower Cover 14. Vapor Vent Cover 5. Display Window 15. Upper Spray Arm 6. Power Button 16. Lower Spray Arm 7.

  • Page 8: Features & Technical Explanation

    An innovative system enabling an efficient transfer of energy, the Inverter Direct Drive Motor is what makes the LG dishwasher one of the most energy efficient high performance lines in the industry. 4-1-4. Washing performance The Inverter Direct Drive Motor is an innovative system enabling more efficient water pressure control and better cleaning performance.
  • Page 9 4-2 Display Panel MODEL : LD1455W(L,M,T,B,C)FCS2 ① Programme • Press the cycle that corresponds to your desired wash cycle. ② Rinse • Repeated pressing of the Rinse button will select Extra Hot, Rinse+, Extra Hot & Rinse+. • If you select the Extra Hot( ) function, the operating temperature will be up to 80℃.
  • Page 10 ⑥ Delay Start • If you want to delay the start of the selected programme, press this button. • Pressing this button will increase the starting time by 1 hour increments. • The delay start time can be adjusted from 1 hour to 19 hours. ⑦...
  • Page 11 MODEL : LD1454W(L,M,T,B,C)FES2 ① Programme • Press the cycle that corresponds to your desired wash cycle. ② Rinse • Repeated pressing of the Rinse button will select Extra Hot, Rinse+, Extra Hot & Rinse+. • If you select the Extra Hot( ) function, the operating temperature will be up to 80℃.
  • Page 12 ⑥ Delay Start • If you want to delay the start of the selected programme, press this button. • Pressing this button will increase the starting time by 1 hour increments. • The delay start time can be adjusted from 1 hour to 19 hours. ⑦...
  • Page 13 MODEL : LD1453W(L,M,T,B,C)FEN2 ① Programme • Press the cycle that corresponds to your desired wash cycle. ② Rinse • Repeated pressing of the Rinse button will select Extra Hot, Rinse+, Extra Hot & Rinse+. • If you select the Extra Hot( ) function, the operating temperature will be up to 80℃.
  • Page 14 ⑥ Delay Start • If you want to delay the start of the selected programme, press this button. • Pressing this button will increase the starting time by 1 hour increments. • The delay start time can be adjusted from 1 hour to 19 hours. ⑦...
  • Page 15 MODEL : LD1452W(L,M,T,B,C)FEN2 ① ① Process Indicator • Indicates current program phase. • The Wash, Rinse and Dry lamps will flash during each phase of washing process. • The Clean lamp flashes for 4 minutes at the end of the cycle. NOTE ②...
  • Page 16 ③ ④ ⑤ ⑥ ⑨ ② ⑧ ⑩ ⑪ ⑦ ⑦ Program • Press the cycle that corresponds to your desired wash cycle. ⑧ Extra Hot • If you select the Extra Hot function, the operating temperature will be up to 80ºC. (Dual Intensity, Auto, Eco, Eco Plus) •...
  • Page 17 LD1455 / LD1454 / LD1453 4-3 TEST MODE The number of Button Top Display Checking point (Load / Display) Door 상태 pushing button Half + Delay + 1 time All LEDs are lighting n:xx / d:xx / U:xx Power 1 time All LEDs are lighting n:xx / d:xx / U:xx Rinse...
  • Page 18 LD1452 The number of Button Top Display Checking point (Load / Display) Door pushing button Power + Half Load + 1 time n:xx / U:xx / d:xx All LEDs are lighting Delay start -:-- -:-- Delay Start 1 time Closed Nothing 2 time Fan Motor...

  • Page 19: Wiring Diagram

    5. WIRING DIAGRAM LD1455 / LD1454...
  • Page 20 LD1453 / LD1452...

  • Page 21: Program Chart (Schematic Diagram

    6. PROGRAM CHART (SCHEMATIC DIAGRAM) LD1455 / LD1454 / LD1453...
  • Page 22 LD1452...

  • Page 23: How To Disassemble

    7. HOW TO DISASSEMBLE BEFORE DISASSEMBLING THE DISHWASHER ; 1) Remove the plug from electric outlet to avoid electric shock. 2) Close the Water Tap(faucet). 3) Remove all dishes and items in the dishwasher. 4) Remove the Lower Rack and the Upper Rack. 5) In case of the water softener assembly model, open the water softener cap to flow out the water to sump and drain to avoid the floor wet.

  • Page 24: Door Assembly

    4. Door Assembly 1) Front Cover ① Remove 2 screws under a front cover. ② Open the door. ③ Remove 6 screws(stainless). ④ Close the door slowly and remove front cover downwards. 2) Control Panel Assembly ① Open the door. ②...
  • Page 25 3) Fan ① Open the door. ② Remove the wire connections. ③ Remove 2 screws. ④ Turn the inner cover counterclockwise. ⑤ Remove the air duct. Be careful the rubber packing should not be lost. 4) Detergent Dispenser ① Close the door. ②...

  • Page 26: Tub Assembly

    5. Tub Assembly 1) Rack ① Remove the top rack and the upper / lower rack. 2) Nozzle and Water Guide ① Pull up the nozzle. ② Remove the water guide from the tub bracket. (Top & Rear) 3) Lower Frame Assembly ①...
  • Page 27 4) Sump Assembly ① Remove the wire connections. ② Remove 2 hoses assembly. ③ Rotate 2 holders between sump and tub. ④ Lift up sump assembly ⑤ Remove the wire connections in the back of the sump assembly. 5) Air guide Nut and Water softener Cap & Nut ①...
  • Page 28 6. Tub Sub Assembly 1) Top Frame ① Remove front 2 screws. ② Remove side 2 screws. ③ Lift up top frame. 2) Balance Weight ① Remove 2 screws. ② Lift up balance weight. 3) Overflow Guide (R/L) ① Remove 1 screw of right side. ②...
  • Page 29 7. Air Guide Assembly ① Lift it upward to disconnect from water softener. ② Disconnect the wiring connection. ③ Remove 3 hoses assembly. Be careful the o-ring should not be lost. Be careful not to wet the floor by the water left in the hose.
  • Page 30 8) Aqua Stop ① Press the holder hook. ② Pull the hose assembly. 9) Drain Hose ① Press the rear side hook. ② Pull the holder forward. ③ Pull the holder upward. 9. Sump Assembly 1) Heater ① Remove the wire connections. ②...
  • Page 31 4) Vario Valve ① Remove 6 screws on the nozzle holders. ② Lift up nozzle holders. ③ Lift up Vario Valve. 5) Vario Motor & Vaio Cam ① Remove 2 screws for Vario Motor. ② Pull the Vario Motor/Cam and Micro switch.
  • Page 32 7-2. DISASSEMBLE SUMP ASSEMBLY 1. Lower Cover 2. Front Cover ① Remove 2 screws under a front cover. (Special tool might be needed.) ② Open the door. ③ Remove 6 screws(stainless). ④ Close the door slowly and remove front cover downwards.

  • Page 33: Lower Frame Assembly

    3. Lower Frame Assembly ① Remove 1 earth screw. ② Remove 2 screws. ③ Pull up the lower frame assembly. 4. Sump Assembly ① Remove the wire connections. ② Remove 2 hoses assembly. ③ Rotate 2 holders between sump and tub. ④...

  • Page 34: Trouble Shooting Methods

    8.TROUBLE SHOOTING METHODS Inlet Error Condition. Not reached to the normal water level in spite of 10 displayed? min. water supply. Does the water supplied? The water is supplied. The water is not supplied. How to check the water supply Frequency is not increased ①...
  • Page 35 Is the Inlet sensor operate properly? Does the PCB assembly working Replace the PCB Replace the inlet (red+black range is 8~10kΩ) properly? assembly sensor. When Door is closed, check the voltage between NA4 3pin and BL4 1pin -. Aqua stop working : 230VAC -.
  • Page 36 Drain Error Condition. Not fully drained out in spite of 5 min. drain operation. displayed? Does the drain motor operate? How to check the water supply Motor rpm is not increased. Motor rpm is increased. ① press 3 buttons at the same time. (Half load, Delay start and Power) ②...
  • Page 37 Leakage Error Condition. The water level in Tub goes down during operation displayed? or standby mode. Is the water flooded in the base? Water is not flooded Water is flooded in the base. in the base. How to check. Disassembly the lower cover. Is the float assembled properly? Tilt the machine and drain Remove the cause of leakage.
  • Page 38 Excess Error Condition. Excessive water is supplied than normal water displayed? level.(Automatically drain Pump operated.) Is the water supplied when (Close the water tap.) the machine is shut down? Does the PCB assembly working Replace the PCB Does the inlet valve properly? assembly Replace the inlet valve...
  • Page 39 Thermal Error Condition. The resistance of thermistor not normally out put. displayed? Is the connector Is the connector Reconnect or Reconnect or connected to main PCB connected to heater repair the repair the assembly disconnected or assembly disconnected or connector. connector.
  • Page 40 Heater Error Condition. The water is not heated or the temperature displayed? in the inner tub is overheated to over 95℃ Is the heater resistance Measured properly? (range is 28~33Ω) Is the connector connected Reconnect or to main PCB assembly Replace the heater repair the disconnected or...
  • Page 41 Does the PCB assembly Replace the PCB working properly? assembly When door is closed, check the resistor between X1 4pin and X2 4pin. -. Heater working : 230VAC ± 15% -. Heater stop : 0~1V Is the pressure S/W Replace the pressure S/W. operating properly?
  • Page 42 Locked motor Error Condition. The revolution of washing motor is not increased. displayed? Check the connectors below. Is the resistance values Reconnect or Check or Is the connector repair the in the range of 15 to 20Ω? replace the disconnected or ※...
  • Page 43 Nozzle(Vario) Error Condition. The position of vario cam is not properly. displayed? Check the connectors below. Reconnect or Does the vario S/W Is the connector Reassemble repair the assembled properly? disconnected or disassembled? vario S/W. connector. (BL4 : vario motor, NA8 : Vario S/W sensing) Is the vario motor operated Replace the...
  • Page 44 No Power Is the connector Reconnect connected to Main PCB or repair the Assembly disconnected or connector. disassembled? Check the Is the supplied voltage fuse or reset 230V AC?(+10%, -15%) the circuit breaker. Is LED on while the power Replace the is on? main PCB assembly.
  • Page 45 Washing result is not satisfactory. Does the salt refill lamp blink? After washing, is there (Refill salt.) any white deposits on the dishes or inner tub? Reduce the amount of Rinse After washing, is there aid. any streaks on the dishes or inner tub? After washing, is there a) Wash filter assembly.
  • Page 46 Drying result is not satisfactory. Reduce the amount of Rinse After washing, is there aid. any streaks on the dishes or inner tub? After washing, is there Increase the amount of Rinse water drops on the dishes aid. or inner tub? Is the drying result of a) Does the upper nozzle fit properly cups &...

  • Page 47: Installation Instruction

    9. INSTALLATION INSTRUCTION Step1: Prepare Cupboard opening 1. This dishwasher is designed to fit to the size shown as below. 2. Select a location as close to sink as possible for easy connections to water and drain lines. 3. The dishwasher should not be installed more than 3 meters from sink for proper drainage. 4.
  • Page 48 Step 2 : PREPARE ELECTRICAL WIRING CAUTION For personal safety, remove house fuse or open circuit breaker before installation. Do not use an extension cord or adapter plug with this appliance. Electrical and grounding connections must comply with the national electrical code/provincial and municipal code and/or other local codes.
  • Page 49 Step 5 : DRAIN LINE CONNECTION 1. If the end drain hose does not fit to the drain line, use a piece of rubber connector (not supplied) that must be resistant to heat and detergent and may be obtained from a plumbing shop. 2.
  • Page 50 Drain Hose Extension Drain Hose extension kits are available from through your local service centre. Extend drain Hose as shown below. 200 mm Max. Sink Copper pipe 20mm flared at drain nose and other end if required. Use the couplings for connections when you extend drain hose.

  • Page 51: Exploded View

    10. EXPLODED VIEW LD1455 / LD1454 A001 A020 A010 F001 A040 A050 ACCESSORIES Noise Strip Hardness Strip E200 E006 G009...
  • Page 52 10. EXPLODED VIEW LD1453 / LD1452 A001 A020 A010 F001 A040 ACCESSORIES A050 Hardness Strip E006 G009...
  • Page 53 LD1455 / LD1454 < Cutlery Rack Rail > F117 F111 F110 F113 F112 F060 F050 F210 F040 F117 F111 F113 F022 F118 E001 F008 A002 F117 F105 F112 F171 F117 F215 F118 E010 F192 F004 F132 F005 F191 F300 F137 F230 F139 F138...
  • Page 54 LD1453 < Cutlery Rack Rail > F117 F111 F110 F113 F112 F060 F050 F210 F040 F117 F111 F113 F022 F118 E001 F008 A002 F117 F105 F112 F171 F117 F215 F118 E010 F192 F004 F132 F005 F191 F137 F139 F138 F148 F013 F011 F149...
  • Page 55 LD1452 F060 F050 F040 F022 E001 F008 A002 F117 F105 F112 F171 F117 F215 F118 E010 F192 F004 F132 F005 F191 F137 F139 F138 F148 F013 F011 F149...
  • Page 56 LD1455 / LD1454 / LD1453 K200 K212 K006 K262 K254 K260 K252 K251 K010 K124 K110 K121 K101 K122 K001 F147 F146 F174 F140 F142 F140 F141...
  • Page 57 LD1452 K006 K262 K200 K230 K260 K254 K252 K216 K201 K251 K212 K203 K010 K124 K110 K121 K101 K122 K001 F147 F146 F174 F140 F142 F140 F141...
  • Page 58 LD1455 / LD1454 M051 M050 M053 M054 M055 M052 A130 F035 A131 F034 F037 A161 F032 A160 M230 F031 M260 A276 F036 M180 M190 M090 M200 M500 M023 M195 M020 M212 M270 M211 A120 M213 M210 M216 M214...
  • Page 59 LD1453 / LD1452 M051 M050 M053 M054 M055 M052 A130 F035 A131 F034 F037 A161 F032 A160 M230 F031 M260 A276 F036 M190 M090 M200 M195 M020 M270 A120...
  • Page 60 M072 M070 M074 M125 M120 M071 M025 M126 M081 M087 M089 M075 M031 M091 M028 M060 M026 M027 M006 M030 M130 M088 M131 M133 M132 M134...
  • Page 61 D1455 / D1454 / D1453 A170 A171 A172 A152 A080 A156 A157 A102 A155 A103 A101 A145 A070 A110 A060 A150 A142 A102 A146 A140 A103 A101 A147...
  • Page 62 D1452 A090 A150 A080 A156 A102 A155 A101 A103 A070 A060 A110 A147 A144 A157 A140 A142 A146...
  • Page 63 P/No. : MFL63726506...

This manual is also suitable for:

Ld1455wbfcs2Ld1455wcfcs2Ld1454wmfes2Ld1454wtfes2Ld1454wbfes2Ld1454wcfes2 ... Show all

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